These days....for a 60-day European trip, if you didn’t do it the cheap way but actually stayed at real hotels and ate 50-Euro of food/beverage a day.....you’d burn through $25,000 very easily. It’d be a stupid way of spending money, but I could see someone doing this.
Maybe it’s difficult for us all to imagine because we’d never do such a thing, unless we had money to burn... and no college tuition to pay for.